Stove



j. R. WOTHERSPOON AND F. E. CQATSWORTH.

STOVE.

APPLICATION FILED DEC. 5. 1916.

Patented J an. 13, 1920.

FIG 2- attoqmw l lflllld UNITED STATES PATET OFFICE.

JAMES R. WOTHERSPOON, OF PHILADELPHIA, PENNSYLVANIA, AND FRANK E. GOATSWORTH, 0F LINCOLN, NEBRASKA.

srovn.

Specification of Letters Patent.

Patented Jan. 13, 1920.

Application filed December 5, 1916. Serial No. 135,128.

To all whom it may concern:

Be it known that we, JAMES R. WOTHER- SPOON and FRANK E. COATSWORTH, citizens of the United States, respectively residin at the city of Philadelphia, county of Phila elphia, State of Pennsylvania, and city of Lincoln, county of Lancaster, State of Nebraska, have invented certain new and useful Improvements in Stoves, of which the following is a specification.

Broadly speaking, our invention relatesto improvements in stoves, but more particupose of controlling and regulating the com-' bustion of the fuel within the stove may be facilitated.

A further object of our invention is to provide a construction in which a single or unitary device may be employed for alternately opening and closing the draft and the check draft openings.

The stoveillustrated is especially designed for use in connection with incubators and is usually referred to and denominated in the trade as a brooder stove. It is desirable and necessary that a uniform, equable temperaturebe maintained in incubating rooms or chambers, hence the necessity for providing a stove having means for automatically and surely regulating the draft and check draft openings ofthe stove, whereby the temperature is maintained at a constant selected point or height.

Other objects and advantages of our invention will be referred to in the detailed description thereof which follows or will be apparent from such description.

In order that our invention may be more readily understood and its advantages more fully comprehended and appreciated reference should be had to the accompanying drawing in which we have illustrated one form of a convenient embodiment of our invention, but it will be understood that changes in the details of construction may be made within the scope of the claims without departing from our invention.

1 are provided with nuts In the drawings:

Figure l is a top lan view of a stove provlded with draft an check draft mechanism embodying our invention;

Fig. 2 is a central vertical sectional view of the same;

Fig. 3 is a vertical sectional viewenlarged of a part of the upper portion of the stove and showing thedraft and check draft covering device ina different position from that shown in Figs, 1 and 2; and

Fig. 4 is a transverse sectional view taken on the line 4-4 of Fig. 2.

Referring to the drawings, it will-be noted that the base portion of the stove comprises the two parts 1 and 2. 3 designates the magazine or body portion of the stove which 1s provided with an outwardl extending flange 4 at its lower end or ed g which is seated upon the upper edge of the section 2 of the base of the stove. The portions 1, 2 and 3 are secured together b means of rods 5 which are situated upon tiie inside of the member 2 and which extend through openings in the flange 4 and downwardly throu h the sheet 6 constituting the upper part of t e portion-1 of the base of the stove. The lower ends of the rods 5 are screw threaded and 7 for drawing and holding the three parts, 1, 2. and 3, tightly together. For the purpose of strengthening the body or magazine portion of the stove the same is provided with longitudinall arranged ribs 8. It may be noted that the body or magazine portion 3, of the stove is of truncated cone shape.

10 designates a semi-tubular member secured to and extending longitudinally of the stove as shown. The opposite edges of the said semi-tubular member 10 are situated upon the outer sides of two adjacent strengthening ribs 8, as is clearly shown in Fig. 4. The lower end of the said semi-tubular member 10 extends beyond an opening 11 in the member 2, so that the semitubular passageway formed b the said member 10 communicates wit 1 the said opening as shown. The upper end of the said passageway is open, but is adapted to be closed in a manner to be hereinafter pointed out. lVhen the said passageway is open the air passes thereinto and travels in the direction of the arrows 12 and enters the chamber within the portion or section 2 of the base below the grate 13, upon which the fuel within the body or magazine portion 3 of the stove is supported.

The top 15 of the stove is shown as being integral with the sides of the magazine portion 3, although it will be understood that such integral connection or relationship is not necessary or essential as the top may consist of a separate sheet secured in any suitable manner to the upper edge of the said portion 3. The said top is provided with a central, square or rectangular opening 16 adapted to be Covered by means of alid 17. The openin 16 is provided for the purpose of intro u'cing fuel into the stove and on to the grate 13. Preferably the said opening is provided with a short surrounding flange 18. The lid or cover rests upon the top of this flange. The outlet opening for the discharge of the smoke and gas from the interior of the stove body or magazine 3 is shown at20. This outlet opening is of oblong shape and is situated intermediate the edge of the top of the stove and one side of the rectangular opening 16. Said outlet opening communicates with a flue or pipe (not shown) for conducting the said gases and smoke away from the stove. The said opening 20 is provided with a surrounding flange 21.

The top of the stove is also provided with an oblong check draft opening 25 situated intermediate the edge of the stove and a side of the rectangular-opening 16. This opening communicates with a check draft chamber 26 with which the outlet opening 20 also communicates. The gas and smoke pass or emerge from the interior of the stove through the open end 27 of the said chamber and thence through said chamber and out through the opening 29 and into the smoke pipe or flue (not shown). The upper open end of the semi-tubular member 10 is situated in adjacent or approximate and in opposing relation to (having reference to the intermediate portion of the wall of the stove) the check draft opening 25. It will also be noted that the upper open end of the said member 10 is inclined outwardly and downwardly. The covers for closing the opening 25 and the upper open end of the semi-tubular member 10, are rigidly connected together being integral in the construction shown, but such integral relationship is not necessary or essential. The portion of the covering device which is adapted to cover and close the opening 25, we have designated by the reference number 30,-

while the portion thereof which is adapted to cover and close the open upper end of the semi-tubular member 10 we have designated by the reference number 31. This covering member is provided upon its opposite edges with pivots or trunnions 32 which are supported in notches in the upper ends of the short lugs 38. The trunnions or pivots 32 are retained in their seats by the retaining device having the central portion 34 which mostatic device 40 situated intermediate the.

outer end of an arm 41, which extends laterally from the portion 2 of the base of the stove, and a pivoted arm or lever 42, se-

cured to the arm 41 by means of-the bolt 43.

The'thermostatic device 40 is situated between the arm 41 and lever 42 adjacent to the point of connection between the said arm and lever. The free end of the lever 42 extends inwardly toward the base of the stove underneath the arm 41, and terminates at a point near such base. 44 designates a rod having connection at its lower end to the lever 42 and atits upper end to a projection 45 extending outwardly from the cover 31, as is clearlyshown in Fig. 2 of the drawing.

As illustrated in Fig. 2 of the drawings ,the draft opening-passageway is open so that air may be admitted to the stove to cause a proper combustion of the fuel therein to create and increase the temperature within the room occupied by the stove as may be desired. If such temperature extends beyond a certain point predetermined by the thermostatic device 40, the latter expands sufficiently to actuate the lever 42 to the extent required to move the covers 31 and 30 to close the former and open the latter. The closing of the former interrupts the passage of the air and consequently the supply of oxygen to the fuel within the stove and thereby retards or slows down the combustion process and at the same time air is admitted through the opening 25 to the top of the stove to effect a damping action upon the fire within the stove and aid in the retardation and slowing down of such combustion process.

lVe claim 1. A stove provided with a passageway, one end of said passageway being situated adjacent to the top of the stove and the other end of the said passageway communicating with the interior of the lower portion of the stove and the said stove being provided with a check draft opening in its top, said opening being situated adjacent to the open end of said passageway adjacent the top of the stove, covers for opening and closing the check draft opening and the said passageway, said covers being rigidly connected with each other and the said covers being provided with pivot lugs upon the opposite edges thereof, supporting seats for said pivot lugs, retaining means for retains ing the said pivot lugs in their seats and automatically acting means for actuating the said covers to alternately open and close the said passagewa and said opening, substantially as descri ed.

2. A stove provided with a passageway terminating at its upper end adjacent to the top of the stove and the lower end of said passageway opening into the lower portion of said stove underneath the fire box, said passageway being adapted for supplying air for effecting combustion of fuel within the said stove and the said stove being provided with a check draft opening near the upper end of said passageway, a plate-like member one portion of which constitutes a cover for opening and closing the upper end of said passageway and another portion of which constitutes a cover for opening and closing the said check draft opening, said plate having pivots intermediate the said portions, supports for the said pivots, said supports being situated intermediate the said check draft opening and the upper open end of the said passageway, and thermostatic means for controlling the position of the said plate-like member to thereby control the opening and closing of the said passageway and the said check draft opening.

In testimony that we claim the foregoing as our invention, we have hereunto signed our names this 18th day of November, A. D. 1916.

JAMES R. WOT'HERSPOON. FRANK E. COATSWORTH. 

